Internal_Function with Encryption in SQL PLAN
摘要:
Sometimes,the columns are decrypted as a result and decrypt functions (appears as INTERNAL_FUNCTION in the execution plan) are applied on them, which can lead to poor approximations of column selectiv... 阅读全文
posted @ 2010-06-20 10:45 Oracle和MySQL 阅读(388) 评论(0) 推荐(0) 编辑